Low voltage, mechanics can't figure it out

Asked by Jul 21, 2017 at 11:23 PM about the 2007 Buick Lucerne V6 CXL FWD

Question type: Maintenance & Repair

My 2007 Lucerne is giving off 2.5 voltage and it should be 5. I bought a new
PCM (computer) still nothing. I have a brand new Interstate battery. Two
mechanics with 40 yrs each on GM's can't figure it out. They spoke to a GM
engineer, he can't figure it out. They went from tail lights to PCM inch by inch
checking all connections. I'm at a loss and they've had my car over 5 weeks.  
Anyone else have this issue?

2 Answers

115,305

Normal battery voltage is 12.5.

8,655

which sensor wiring?

Your Answer:

Buick Lucerne Experts

  • #1
    DrakeTJ
    Reputation
    940
  • #2
    jeffsbuick
    Reputation
    800
  • #3
    seastorm709
    Reputation
    630
View All

Related Models For Sale

Used Buick LaCrosse
5 Great Deals out of 337 listings starting at $5,500
Used Chevrolet Impala
17 Great Deals out of 997 listings starting at $2,994
Used Cadillac DTS
22 listings starting at $5,100
Used Buick Enclave
15 Great Deals out of 1,537 listings starting at $4,995
Used Chevrolet Malibu
46 Great Deals out of 1,980 listings starting at $2,390
Used Chrysler 300
39 Great Deals out of 1,009 listings starting at $3,222
Used Toyota Camry
27 Great Deals out of 2,137 listings starting at $2,995
Used Honda Accord
29 Great Deals out of 1,638 listings starting at $1,500
Used Cadillac CTS
12 Great Deals out of 338 listings starting at $5,000
Used Dodge Charger
43 Great Deals out of 924 listings starting at $4,490
Used Lincoln Town Car
9 listings starting at $6,990

Used Cars For Sale

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.